Single Ratio Speed Reducer for Pulp Refiner Drives
Industrial fixed ratio speed reducer tailored for double-disc pulp refiners, converting high-speed motor input to low-speed, high-torque output for fiber fibrillation in cellulosic pulp lines. Built with corrosion-resistant alloys for chemical-laden pulp mill environments. HTS 8483.40.30.40 applies due to its dedicated use in pulp processing machines.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If integrated into complete pulp refining machine assembly
Complete machines for pulp treatment classify in Chapter 84 rather than separate speed changer parts.
If imported as semifinished gear housings needing assembly
Unfinished parts of speed changers fall under 'parts thereof' provisions.
If for use in pulp slurry pumps rather than refiners
Pump-specific speed changers may classify with linear acting pumps in 8412.
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Import Tips & Compliance
• Pair with CBP Form 3461 noting 'for pulp refiner drives' to expedite clearance under this specific provision
• Maintain bills of materials showing no variable ratio mechanisms to avoid 8483.40.30.60 scrutiny
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